怎么核对两个数据集是否一样

proc sort data=a1 ;by id; run;
proc sort data=a2; by id; run;
proc compare base=a1 compare=a2  
out=differ outnoequal  outbase outcomp noprint;
var x1 x2 x3 x4 x5 x6;
id id;
run;

proc sql;
   title "different rows";
   create table a3 as
   select * from a2
   except
   select * from a1;
quit;

从a2中找出与a1不同的row

hcydlee 发表于 2012-5-18 15:40
proc sql;
   title "different rows";
   create table a3 as

谢谢谢

学习啦！